void
NV11SyncToVBlank(PixmapPtr ppix, BoxPtr box)
{
ScrnInfoPtr pScrn = xf86Screens[ppix->drawable.pScreen->myNum];
NVPtr pNv = NVPTR(pScrn);
struct nouveau_channel *chan = pNv->chan;
int crtcs;
if (!nouveau_exa_pixmap_is_onscreen(ppix))
return;
crtcs = nv_window_belongs_to_crtc(pScrn, box->x1, box->y1,
box->x2 - box->x1,
box->y2 - box->y1);
if (!crtcs)
return;
BEGIN_NV04(chan, SUBC_BLIT(0x0000012C), 1);
OUT_RING (chan, 0);
BEGIN_NV04(chan, SUBC_BLIT(0x00000134), 1);
OUT_RING (chan, ffs(crtcs) - 1);
BEGIN_NV04(chan, SUBC_BLIT(0x00000100), 1);
OUT_RING (chan, 0);
BEGIN_NV04(chan, SUBC_BLIT(0x00000130), 1);
OUT_RING (chan, 0);
}
static void
nouveau_dri2_finish_swap(DrawablePtr draw, unsigned int frame,
unsigned int tv_sec, unsigned int tv_usec,
struct nouveau_dri2_vblank_state *s)
{
ScrnInfoPtr scrn = xf86ScreenToScrn(draw->pScreen);
NVPtr pNv = NVPTR(scrn);
PixmapPtr dst_pix;
PixmapPtr src_pix = nouveau_dri2_buffer(s->src)->ppix;
struct nouveau_bo *dst_bo;
struct nouveau_bo *src_bo = nouveau_pixmap_bo(src_pix);
struct nouveau_pushbuf *push = pNv->pushbuf;
RegionRec reg;
int type, ret;
Bool front_updated, will_exchange;
xf86CrtcPtr ref_crtc;
REGION_INIT(0, ®, (&(BoxRec){ 0, 0, draw->width, draw->height }), 0);
REGION_TRANSLATE(0, ®, draw->x, draw->y);
/* Main crtc for this drawable shall finally deliver pageflip event. */
ref_crtc = nouveau_pick_best_crtc(scrn, FALSE, draw->x, draw->y,
draw->width, draw->height);
/* Update frontbuffer pixmap and name: Could have changed due to
* window (un)redirection as part of compositing.
*/
front_updated = update_front(draw, s->dst);
/* Assign frontbuffer pixmap, after update in update_front() */
dst_pix = nouveau_dri2_buffer(s->dst)->ppix;
dst_bo = nouveau_pixmap_bo(dst_pix);
/* Throttle on the previous frame before swapping */
nouveau_bo_wait(dst_bo, NOUVEAU_BO_RD, push->client);
/* Swap by buffer exchange possible? */
will_exchange = front_updated && can_exchange(draw, dst_pix, src_pix);
/* Only emit a wait for vblank pushbuf here if this is a copy-swap, or
* if it is a kms pageflip-swap on an old kernel. Pure exchange swaps
* don't need sync to vblank. kms pageflip-swaps on Linux 3.13+ are
* synced to vblank in the kms driver, so we must not sync here, or
* framerate will be cut in half!
*/
if (can_sync_to_vblank(draw) &&
(!will_exchange ||
(!pNv->has_async_pageflip && nouveau_exa_pixmap_is_onscreen(dst_pix)))) {
/* Reference the back buffer to sync it to vblank */
nouveau_pushbuf_refn(push, &(struct nouveau_pushbuf_refn) {
src_bo,
NOUVEAU_BO_VRAM | NOUVEAU_BO_RD
}, 1);
